The Vevor sump pump battery backup system helps keep basement drainage systems running during power outages with a 2000W pure sine wave inverter and 100 Ah LiFePO4 battery. It is designed for quick plug-in installation with a standard 3-prong connection and supports stable output for sump pumps up to 1 HP. The system features 3-stage charging to help optimize battery performance and service life. An LCD display and LED indicators provide real-time monitoring of voltage, battery level, and operating status. Built-in protections help guard against overcurrent, overvoltage, short circuit, reverse polarity, and high temperature.